Coal-jigger.



l. F. WAGNER.

COAL JIGGER.

APPLICATION FILED Amza. |918.

Patented Dec. 17, 1918.

4 SHEETS-SHEET l.

l. F. WAGNER.

COAL HQGER. APPLICATION F|LED'APn.23.191s.

Patented Dec. 17,1918..

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J. F. WAGNER.

COAL JIGGER.

APPLICATION man APR.23. 1918.

vPatented Dec. 17,1918.

4 SHEETS-SHEET 3 V w. u o r t J. F. WAGNER.

COAL JIGGER.

APPLxcATIoM FILED APR.23.1918.

1,288,33. l Patented Dec. 17,' 1918.

4 SHEETS-SHEET 4.

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JOHN F. WAGNER, OF TAMAQUA, PENNSYLVANIA.

COALLJIGGER.

Application filed Apr123, 1918.

T all Ito/wm t may concern Beit known that I, JOHN F. Wasn-En, a citizenof the United States, residing at Tamaqua, in the .county of Schuylkilland State of Pennsylvania,.have invented certain new and usefulImprovements in Coal- Jiggers, of which the following is a speciication.

Thisinvention isdesigned as an improvement over jiggers of the .typeembodying a jig panand means for .impartinggyratory motion thereto. Inpreviously designed j1ggers of this type, as forexample 1n the jiggershown in Patent No.. 977,087, issued Novem ber 29, 1910, to El. W.Falkner, F.v Schultz and myself, it .has been customary to .gyrate thejig .pan by ythe action kof eccentrlcs mounted upon'parallel .shafts anddriven by a connectingbelt' or chain or other gear connection. `Thepresent vinvention vhas as its primary object toprovide in acoaljiggerofthe .type Aabove mentioned, means for nnparting gyratory motion .to thejig pan, which .means will ,be-constructed and arranged togiveto thepana steady and-positive motionandiatthe 'same time will act to maintainthe pan in i a. level position.

,Another object ofthe invention kis to provide-means forimpartinggyratory motion to thej ig pan, whichI meanswlll embody but asingle operating shaft-carrying eccentri'cs having such'an arrangementand so connected with the jig pan as to impart the'desired motion vtothesaid pan xand so that the Aseeondehaft usually employed is dispensedwith as well `as ysprocket or kother gearing for transmitting motionfrom one shaft to the other.

1n the accompanying drawings:

Figure 1 is a sideelevation of the jigger embodying the presentinvention;

Fig. 2 is atop plan view thereof;

Figs.y 3, 4, 5 and 6 are lvertical longitudinal sectional views througha jig pan andillustrating inelevationfand partly vin section, the meansprovided for imparting gyratory motion to the said pan intheoperation-of the machine.

The numeral 1 indicates in :general the supporting frame structure ofthe machine, and the numeral 2 indicates the washing tank in which thejig pa-n is to operate, the said pan being indicated ingeneral bythenumeral 3. The chute which discharges into the pan is indicated by thenumeral 4 Specication of Letters Patent.

rammed Dee. '17, '1918.

Serial No. 230,331.

and the same extends at its discharge end above what may beconsideredtherear end of the said jig lpan. The jigpan comprises side walls 5, abottoml 6, a rear end walli7 and a-forward endwall 8, there beinga,partit-ion-wall 9 arranged within the Ajig .pan and .extendingtransversely thereof andlocated vopposite therear wall'i? of the saidpan. The partition wall 9 is inclined vdownwardly and rearwardly and atits Ylower edge is spacedabove a stepped portion 10 of the bottom wall'Aof the jigpan, the said partition walll9. forming in conjunction withthe rear end wall 7, a hopper into :which the chute discharges, andv.the bottom of which hopper discharges onto the .said stepped portion10y of the-,bottom .ofthe pan. Thus .by the provision .of the zwall T9,the coal and the slate .mixed therewithis prevented from being thrownany considerable `distance beyond the discliarge` end of the chute 4andis in fact compelled to first pass over the stepped portion 10beforereaching the true bottomof the pan. At vits. forward end the panis provided with the .usnalvgate 11 hinged at. the forward end ofthebottom of the pan and designed to provide .fordis charge of thevslatefrom the pan into-the washing tank 2. At its forward end fthejig pan isprovided with a dischargespout 12 designed to discharge onto a conveyerof the endless traveling-type indicated in genA eral by the numeral 18.A similar conveyer 14 is arranged beside the conVeyer=13,.but at itsrear en d extends downwardly into Ythe bottomof the washing tank 2. Ofcourse, coal passing over the upper edgeof thefront end wall 8 of thejig pan and into the spout 12, will be delivered to the conveyer 13 andelevated by the same, whereas slate` and 'other foreign matter inthecoal will befirstidischarged into the washing tank-2 past the gate 11and then carried upwardly and discharged by the .conveyer '14.

As before stated, -means is provided for imparting gyratory motion tothe jig pan and at thesame 'time-maintainingthe pan in a level positionso rthat vthe coal to :be washed willlnotbe initially thrownbeyond thestepped portion 10-or caused to travel too rapidly from the rearvto theforward endof the said pan. The means for accomplishing this resultincludes a shaft 15 which is rotatably mounted in suitable bearings 16upon the vsupporting frame structure l, the

said shaft `being'rotated by means of a drive belt and pulley, indicatedby the numeral 17, or in any other desired manner. Fixed upon the shaft15 near each end thereof and slightly beyond the planes of the sidewalls 5 of the jig pan, are eccentrics indicated by the numeral 18,andsiinilar eccentrics '19 are fixed upon the said shaft, oneimmediately inwardly of each of the eccentrics 18. By reference to Figs.8, 5 and 6 of the drawings, it `will be observed that the eccentrics 18y'andf19 are relatively oppositely positioned with relation to the Aaxisof the shaft 15, and being fixed tothe said shaft, these eccentrics, ofcourse, maintain their relative positions inthey rotation of the saidshaft. Mounted upon stub shafts 20 journaled in suitable bearings 21.upon4 the supporting frame structure 1, are rock arms 22, these armsbeing located infront to rear alinement with the respective eccentrics18. Each arm 22 at its forward Vend, carries an eccentric strap 28surrounding the corresponding` eccentric 1 8. T he strap 23, however,does not as is; ordinarily the casefdene a circular opening snuglyreceiving the eccentric 18, but thefopening ofv the strap, indicated bythe` numeral 25,]is somewhat of elliptical form,`the opening in itsvertical dimension beingv equal to the diameter of the eccentric and inits horizontal dimension being some what greater than the diameter ofthe eccentric. n' As a consequence the eccentrics 18 act `upon theirrespective straps 28 solely to raise and lower, or cause up and downmove ment of the said straps, the eccentrics having no eect upon thevstraps tending to reciprocate the same in a horizontal or back andforth direction. As a consequence in the rotation of the shaft 15, theeccentrics actin connection with their respective straps 23, to impartoscillatory motion to the rock arms Q2. Links 24 are pivotallyconnected1 at their upper ends to the rear ends of the arms 22, and attheir lower ends are pivot. ally connected at the upper rear corners ofthe jig pan; As a consequence when the forward ends of the arms 22 vareswung downwardly through the action of the eccentrics 18,v the rear endsof the armswiil be swung upwardly carrying with them the rear end of thejig pan, and on the other hand when the forward ends of the arms areswung upwardly through the action of the eccentrics '18, the rear endsof the said arms will be swung downwardly carrying with them .the saidrearend 'of the pan. The numeral 26 indicates brackets which are se#cured to the upper edges of the Vside walls 5y of the jig pan `inadvance of the center thereof, and these brackets are provided with ieccentric straps 27 which surround andV snugly receive the eccentrics19, as clearly shown in Fig. i of the drawings. As before stated, theeccentrics 18 and 19 are relatively 'offset in opposite direct-ions withrelation to the axis of the shaft 15, and consequently when .theeccentrics 18 are acting against the straps 28 to move these straps inan upward direction and consequently lower the rear end of the jig pan,the eccentrics 19 are acting against the straps 27 to move thebracketsQG downwardly, thereby correspondingly lowering the forward endof the jig pan. ln like manner when therear end of the jig pan iselevated through the action"v of the eccentrics18, theeccentrics '19will simultaneously act to elevate thev forwardend of the jig pan.Therefore the 'jig pan is maintained in'level position. However, as theeccentrics 19 lit snugly Ywithin the openings in their.

respective straps 27, these eccentrics will impart baci: and forthmotion to the vsaid pan in the rotation of the shaft 15;

Having thus described the invention, what.

is claimed as new is: y

1. In a machine ofthe class described, a jig pan, a shaft,y means forrotating said shaft, means operated by said shaft and forming a directconnection between the same and one end of the jig pan for imparting anup and down and'ba'ck and forth motion to said end lof said jig pan, andmeans operated by said shaft and connected with the opposite end of thejig pan to i1n. part an up and down motion only thereto.

2. in a machine of the class described, a jig pan, a shaft, an eccentricupon the shaft, an eccentric strap working thereon and connecteddirectly with the jig pan, a second eccentric upon the shaft, anelliptical eccentric strap working upon the second-mentioned eccentric,an arin pivotally supported between its ends and connected 'atione sideof its pivot with the elliptical eccentric strap and at the other sideof its pivot with'the saidpan.-

3. ln a machine of the Yclass described, a jigpan, a rocking member,operative connec# tion between the pan and the rocking member at oneside of the pivot Y for the latter, a rotary shaft, operative connectionbetween the shaft and the rocking member at the other side of the pivotfor the latter for imparting rockingy motion to the said member,andmeans operated bythe shaft Vand directlyV connecting theV samewith thejig pan forimparting upk and downand back and forth movement tothe jigpan.V

4. In a machine of the l,class described, a jig pan, suspendingvmembersCOIlII/.Gcti'ed at spaced points with thepan one of said mein`bers being pivotally and the other rigidly attached to the pan, arockerconnected at one side of its pivot withthe pivotal suspension member, ashaft, '.direct'operative 'conk nection between the shaftandthe rockerat the other side of the pivot for the latter'for imparting rockingmotion to the rocker in the rotation of the shaft, and direct operativeconnection vbetween the rigid Suspension member and the said shaft forimparting up and down and bac-k and forth movement to the said member,the said operative connections with the shaft Working in opposition toeach other whereby to maintain the level position of the pan.

5. In a machine of the class described, a shaft having opposed crankelements mounted thereon, a jig pan, a rocker sivingingly connected atone side of its pivot With the said pan and having slotted Connection atthe other side of its pivot with one of the crank elements, and asuspension member rigidly connected with the said pan at the other sideof the pivot for the rocker and having pivotal connection only with theother crank element upon the Said shaft.

6. ln a machine of the class described, a jig pan, a shaft, means forrotating said shaft, opposed eccentrics on said shaft arranged adjacentthe sides of the jig pan, suspending members rigidly secured to the jigpan and provided with circular straps tting around certain of saideccentrics, rocker arms pivoted intermediate their ends and provided attheir forward ends With elliptical straps itting around the other ofsaid eccentrics, and links pivoted at their lower ends to the jig panand at their upper ends to the rear ends of said rocker arms.

In testimony whereof I aix my signature.

JOHN F. WAGNER. [1.. 8.]

Copies of this patent may be obtained for ve cents each, by addressing'the Commissioner of Patents, Washington, D. 6.

